US2169609A - Method of making two-part stops for separable slide fastener tapes - Google Patents

Description

Aug. 15, 1939. 1 M. KIESSLING, El AL 2,159,609

IETHOD OF IAKING TWO-YART STOPS FOR SEPARABLE SLIDE IASTEIIER TAPES.

' Original Filed May 11, 19:56 2 Sheets-Sheet 1 Bnnentor 113,2: Kieqsling, Adolph Hugger:

ttotneg g- 15, 1939- I M. KIES'SLING ET AL 2,169,609

IETHOD OF MAKING TWO-PART STOPS FOR SEPARABLE SLIDE PASTEIER TAPES Original Filed May 11, 1936 2 Sheets-Sheet 2' Zmventor Max Kalessl ing. Adolph Ifnlleyen (It orneg Patented Aug. 15, 1939 I UNITED STATE METHOD OF MAKING TWO-PART STOPS FOR SEPARABLE SLIDE FASTENER TAPES Max Kiessling and Agolph Krieger, Waterbury,

- onn.

Original application May 11, 1936, Serial No. 78,990. Divided and this application October 23, 1936, Serial No. 107,196

1 Claim.

This invention relates to methods of making separable slide fastener tapes, and more particularly to a two-part stop for use in detachably holding the ends of a pair of slide fastener tapes together.

In the use of slide fastener tapes of the above nature having rows of cooperating fastener elements along the opposing edges of the tapes, and in which said elements are adapted to be interlocked by. the movement of a slide member, it has been found in many instances that the last element of the row at the end of a tape became direction of the arrows 6-6.

loosened, and either shifted out of its proper posiseparation of the ends of said tape.

One object of this invention is to provide a method of making a two-part stop of the above nature whereby the ends of the tapes will be fitted closely and neatly together in an easy and positive manner.

Another object is to provide a method of making a device of the above nature which, when clamped at the ends of-the slide fastener tapes, will prevent the last fastener element from being moved out of position or pulling ofl.

Still another object is to provide a method of making a detachable stop of the above nature consisting of a pair of cooperating male and female members, each, of which is made from a single piece of metal.

A further object of this invention is to provide a method of making the female member of the detachable stop.

A still further object is to provide a method of making a detachable stop of the above nature which will be simple in construction, inexpensive to manufacture, easy to manipulate, compact, ornamental in appearance, and very eflicient and durable in use.

With these and other objects in view, there has been illustrated on the accompanying drawings one form in which the invention may be conveniently embodied in practice.

In the drawings:

Fig. 1 illustrates a pair of interlocked fastener element tapes having the improved detachable stop assembled at the lower ends thereof.

Fig. 2 is a fragmentary view of the lower ends of said tapes as they appear when separated.

Fig. 3 is an enlarged front view of the lower ends of the tapes showing the detachable stop members in assembled position.

Fig. 4 is a similar enlarged view of the same taken from the rear.

Fig. 5 is an enlarged edge view taken on the tion or was pulled off, resulting in premature- Fig. 7 is an enlarged slde edge view of the male member of the stop.

Fig. 8 is an enlarged side edge view of the female member of the same.

Figs. 9 to- 16 inclusive are views showing the 10 appearance of the blank after the successive steps in the method of making the female member of the stop.

Figs. 1'7 to 21 inclusive are similar views show ing the appearance of the blank after the successive steps employed in the method of making the male member of the stop.

This application is a division of a prior application by the same inventors filed May 11, 1936, Serial No. 78,990, entitled Two-part stops for 20 separable slide fastener tapes.

Referring now to the drawings in which like reference numerals denote corresponding parts throughout the several views, the fastener element tapes upon the ends of which the detach- 25 able male and female members of the improved stop are applied comprise a pair of narrow elongated beaded fabric strips or stringers l0 and Il, each having a row of forked jaw elements l2 clamped upon the beaded edges thereof, and said rows of elements are adapted to be interlocked for connecting the tapes together by the camming action of a tapered slide l3 mounted thereon, when it is pulled upwardly from the lower end thereof, as viewed in Fig. 1. The rows of connected elements I! are adapted to be disengaged from each other to permit separation of the tapes by moving the slide iii in the reverse direction, all of which is in accordance with the well known practice in this art.

Each element l2 is provided with a pair of opposed jaws which are crimped inwardly upon the edges of the tapes by suitable clamping tools not shown. The slide I3 is preferably provided with a hinged finger piece H to facilitate the manipue 45 lation thereof, said slide preferably having a pair of parallel spaced plates l5 and I6 adapted to embrace the rows of elements l2 therebetween. The side plates l5 and I6 are provided on both side edges with inwardly extending side flanges 50 I! for confining the elements l2 and. forcing them together into cooperating engagement.

The detachable male and female members i8 and i9 of the stop forming the present invention are shown in Fig. l in assembled position applied 66 .ber is attached to the tape, serve to facilitate the to the-bottoms ofapair oftapes ii and il. Each of the members II and I. is preferably made of one piece of material, such as a blank of sheet metal, formed and attached to the tapes accord-- ing to the methods to'be hereinafter the slide it is moved upwardly.

The female member it includes a pai'r'of opposed tape-embracingfplates 2. and' 21 having alined openings 22 therein which, when the memattachment of the tape to the edge of the article tobe closed.- Above the plates 2. and 2| and disposed alongthe edge of the tape abutting the elements i2, a tubular clip 23 is provided which embraces the tape edge and is securely'crimpedthereto. The clip 23 extends upwardly from the plates and 2| to a point closely adJacent the last element I2. upon the end of the left-hand tape ill to which the member I. is attached, as viewed in Fig. 1. 'Below the clip 23 and with its axis in alinement with the line of jointure of the two rows of elements i2 on the tape edges, a hollow intermediate cylindrical socket 24 is providcd. Provision is also made of a pair of sliderguiding ears 2!, one of which extends upwardly fromeach of the plates 20 and 2! on opposite faces of the tape ill.

. Male stop member The male member I. also has opposing tapeembracing plates 28' and 21, similar to the plates 20 and 2| of the female member; and said plates 28 and 21 are likewise provided with circular openings 28 to facilitate securing the tape ii to the article to be closed. The plate 28 has an upstanding pointed prong 28 formed on its upper edge which is adapted to be passed through the tape ii and then bent over and pressed down formed on the-rear edge of the side part til, which is adapted to pass through the tape II and be bent over and pressed down upon the outer surface of the opposite side plate 3=| to firmly connect the opposing tape embracing plates and 3|. The tubular edge portion 84 connecting the side plates 30 and ii is curved and inclined outwardly slightly from top to bottom and'is extended downwardly from the lower edge of these plates in the form of a cylindrical vertical tongue for cooperative engagement with the socket 24. of the plates 26 and 21 by a slot 38 with its axis in alinement with the line of Jointure of the interlocking rows of.elements |2 on the tape edges above it.

The inclined tubular portion 34 extends above the last element l2 on the tape ii and is slotted, as at 36, to straddle the same. when in assembled position, the rolled tongue 35 of the male member l9 fits within the socket 24 of the female member ll, thereby detachably connecting the opposing lower ends of the tapes l0 and ii. A slot 31 is provided in the meeting edges of the socket 24 to provide clearance for the side plates 30 and 3| of the male member of the stop. The upper end of the slot 38 is adapted to abut against The tongue 35 is spaced from the lower edges,

a shoulder a at the beam of said slot :1 to hold the male and female members it and II in their relative positions, as shown in Figs. 1, 3 and 4, whereby the rows of elements |2 on the opposing tape edges will beproperly interlocked when operation. In Fig. 10. the result of a shearing' operation by suitable tools, not shown, is illustrated, whereby a pair of opposing slots 4| and 42 are formed in the blank '40 leaving a narrow intermediate connecting neck 43. Fig. 11 illustrates the result of the next operation whereby one end of the blank is acted upon by suitable forming and shearing tools (not shown) to bend down portions thereof to provide a pair of sides and for the clip 23, which is U-shaped in cross-section so that it may be fitted over the edge of the tape Iii and be crimped thereto by closing the sides 44 and 45 together.

Fig. 12 illustrates the result of the next operation in which the intermediate portion of the blank" adjacent the clip 23 is bent up by suitable forming tools to form a pair of parallel side portions 48 and 41. In Figs. 13 and 14 the result of another operation is shown whereby the side portions 48 and 41 are closed together as by forming tools, not shown, into tubular form, preferably around a mandrel, not shown, to complete the socket 2,4 and provide the slot 31 and its bottom shoulder 38. The material of theblank 40 has also been acted upon during this step by suitable forming tools to bend up the side plates 20 and 2| into parallelism. Figs. 15 and 16 lllustrate the results of the next step wherein the blank is bent as by forming tools, not shown, at the neck 43 in such a manner that the clip 23 and the socket 24 will assume a position at rightangles to the side plates 20 and 2|. The final product resulting from the next and last operation is illustrated in Figs. 3 and 4 wherein the side plates 20 and 2| are shown embracing the tape ill, and with the clip 23 crimped tightly to the.

ribbed edge of the tape I0 below" and abutting the last element |2 thereon. The forming and shearing tools mentioned above have not been shown on the drawings as it is thought that they would be obvious to any workman skilled in this art from a mere inspection of the drawings.

Method of making the male stop member The'steps in the method of making the male member I! are illustrated in Figs. 17 to 21, inclusive. Thus, Fig. 1'7 shows a blank 48 stamped out of sheet metal by the first or blanking operation. The openings 28, the prongs 29 and 33, the slot 38, and a portion 48 from which the tubular tongue 35 is rolled are all blanked out in the first step. The next operation results in bending down the prongs 29 and 33 at rightangles to the blank 48, as shown in Fig. 18, Fig. 19 illustrates the appearance of the blank 48 after the next step wherein the side plates 30 and 3| are bent, as by forming tools at rightangles to each other, and the inclined tubular portion 34 and the vertical tongue ll are partially formed. 7"

Figs. 20 and 21 show the results of the next operation whereby the side plates 28 and 21 are bent at right-angles to each other and the inclined tubular portion 34 and the tongue 35 are more completely formed. The tooth-like projections 50 of the tongue 49 are bent inwardly,

' firmly against the same, the prongs 29 and 33 being passed through *said tape and bent over, as by forming tools, into engagement with the plate 21 and the side plate 3|, respectively. This last step completes the tubular portion 34 and the tongue 35 and also disposes the male member l 9 upon the tape end with the lowest element l2 in the slot 36.

Operation In operation, in order to connect the tapes I!) and H, the slide I3, which is permanently retained on the tape ID, will first be pushed downwardly as far as it will go until it strikes the socket 24 of the female member I8. The tongue 35 of the male member I! will then be inserted through the plates l5 and I6 of the slide and into the socket 24. The slide 13 will next be pulled upwardly while holding the male member I! firmly, causing the rows of elements l2 to be securely interlocked together. When connecting the members l8 and I! of the slide stop, as above described, the,- male member I9 should be pressed downwardly with suflicient force to insure that the edge 'of the slot 38 of the side plates 30 and 3| engages against the shoulder 39 of the slot 31 in the female member l8, thus positioning the lowest elements 12 on the tapes Ill and II properly to be interengaged by the cam slide l3 during its upward movement therealong.

The curved bottom portion 52 connecting the side plates 20 and 2| of the female member l8 serves to protect the lower end of the tape l0 against fraying. Likewise, the curved bottom section 53 connecting the side plates 26 and 21 of the male member i9 also protects the end edge of the tape II. The clip 23 which is clamped along the edge of the tape l0 stiffens and reinforces said tape at this point and prevents loosening of the lower adjacent element 12. The side plates 30 and 3| of the male member reinforce and stiifen the tape ll adjacent the lowermost element l2, and the slot 35 prevents the lowermost element l2 on the tape H from loosening or becoming dislocated. The prongs 29 and 33 securely maintain the male member ii! in proper positon on the tape I. I.

While there has been disclosed in this specification one form in which the invention may be embodied and a preferred method of making the same, it is to be understood that this form and method are shown and .described for the purpose of illustration only, and that the invention is not to be limited to the specific disclosure, but may be modified and embodied in various forms without departing from its spirit. In

.short, the invention includesall the modifications and embodiments coming within the scope of the following claim.

Having thus fully described the invention, what is claimed as new, and for which it is ,desired to secure Letters Patent, is:

The method of making the female member of a two-part stop for the slide of a pair of separa ble slide fastener tapes, which comprises shearing a blank from flat sheet metal, bending one end portion of said blank in one. direction to form a bead embracing clip, bending an intermediate portion of said blank in the opposite direction and forming it into a tubular socket for the prong of the male member, bending the other end portion of the blank in the same direction as said clip to embrace the sides of one of said tapes, and then swinging said socket and clip as a unit in the same plane through a rightangle to cause said clip and socket to abut adjacent sides of said tape embracing end portion.

' MAX KIESSLINGt ADOLPH KRIEGER.

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